Jessa Duggar and Ben Seewald expecting first child

The "19 Kids and Counting" clan is getting even bigger.

Jessa Seeward (nee Duggar) and husband Ben Seewald are expecting their first child together.

The pair broke the news Tuesday, adding that their due date is a significant one.

"We are so excited. The due date is November first, our wedding anniversary," the mom-to-be, 22, told People. Seewald, 19, added, "We are looking forward to being parents."

The couple's announcement comes as Jessa enters her second trimester.

"I am feeling pretty good," she said. "The morning sickness was different every day. It's getting better, but I'm still hanging on to the heartburn. And I don't have any super-serious food cravings."

Jessa is the third daughter born to Jim Bob and Michelle Duggar, who star with their family on TLC's "19 Kids and Counting."

Her older sister, Jill Dillard, welcomed her first child -- son Israel David -- with husband Derick earlier this month.